ENGINEERED SOLUTIONS
Rehabilitating Aging Infrastructure »
Sewers, Culverts & Bridges
Reline Done Right™
The New Infrastructure
The New Infrastructure
When storm and sanitary sewers, culverts and bridge infrastructure reaches the end of a useful service life, the decision to excavate and replace is
commonplace. Rehabilitation or relining of these storm and sanitary sewers, culverts and small bridges can be a faster and less expensive option that
imparts little to no impact on traffic maintenance.
Rehabilitation – Get In, Get Out, Stay Out™
Contech® offers a variety of products and systems, combined with more than 100 years of experience, to facilitate rehabilitation of storm and sanitary
sewers, culverts and bridges.
Design Considerations for Rehabilitation versus Replacement
Rehabilitating or relining a drainage or sanitary pipeline or structure requires a site-specific analysis. There is no one-size-fits-all approach. Every
reline project needs to be examined closely by qualified professionals.
From an engineering perspective, the design approach must take into account the usual design parameters and must carefully evaluate the current
condition of the pipe or structure and the supporting fill that surrounds it. The primary areas where an engineer should be concerned are:
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Geometric shape and condition of existing
pipeline or structure (and access structure)
Hydraulic requirements and limitations
Optimum shape, size and materials
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Constructability
Design service life
Structural analysis and design
Specification goals
STRUCTURES
SEWER
DRAINAGE
Variety of Products for More Efficient Rehabilitation
2
SPAN RANGE
PRODUCT
DESCRIPTION
8” – 63”
InnerFlow®
Solid, smooth-wall high density polyethylene (HDPE) pipe
12” – 36”
A2™ Liner Pipe
PVC corrugated pipe with smooth interior wall
18” – 102”
ULTRA FLO®
Spiral rib aluminum, aluminized and polymer coated steel pipe
12” – 144”
Corrugated Metal Pipe
Corrugated aluminized and polymer coated steel and aluminum alloy helical pipe
30” – 120”
DuroMaxx
Steel reinforced polyethylene pipe
8” – 63”
InnerFlow
12” – 36”
A2™ Liner Pipe
PVC corrugated pipe with smooth interior wall
30” – 120”
DuroMaxx
Steel reinforced polyethylene pipe
30” – 120” +
SPR™ PE
Spiral-wound steel reinforced PE pipe
4’ – 20’+
Tunnel Liner Plate
Steel and aluminum 2- flanged liner plate
5’ – 23’+
ALSP
MULTI-PLATE®
Aluminum structural plate
Galvanized steel structural plate
8’-9” – 35’-5”
ALBC
Aluminum box culvert
19’-5” – 65’
SUPER SPAN™
SUPER-PLATE®
BridgeCor®
Galvanized steel structural plate long spans
Aluminum structural plate long spans
Deep corrugation galvanized steel structural plate
12’ – 102’
CON/SPAN® and BEBO®
Precast concrete arches
®
®
®
www.ContechES/reline
Solid, smooth-wall high density polyethylene (HDPE) pipe
Rehabilitating Aging Infrastructure
Segmental Sliplining Process for Plastic Pipe
These include DuroMaxx®, A2™ Liner and InnerFlow® products. Consult your local Contech representative for more details.
Gasket bell and spigot or
fusion weld joints.
Optional skids shown.
Pull or push pipe “train”
from trailing end.
New structure
Existing structure
When longer pushes are
required, repeat and join
“trains”.
Fill with water as needed to
resist flotation if other blocking
methods weren’t used prior to
sliplining.
New structure
Existing structure
Place the Next Section
Block the Tail End
New structure
Segmental Sliplining Process for Corrugated Metal Pipe
Existing structure
Place the Next Section
These include ULTRA FLO® and SmoothCor™ products. Consult your local Contech representative for more details.
Insert first section.
New structure
Place Internal
Expanding
Band
&
Gasket
Block the Tail End
Existing structure
Place the Next Section
Block the first section and
place the next section.
Repeat Until All Sections Are Installed
Block the tail end and place
internal expanding band and
gasket.
Repeat until all sections are
installed. Place bracing to prevent
flotation and displacement during
grouting if other blocking techniques
weren’t used prior to sliplining.
Place Internal Expanding Band & Gasket
Place
thethe
Next
Block
TailSection
End
Install Bracing to Prevent Flotation & Displacement During Grouting
Repeat Until All Sections Are Installed
Block the Tail End
Place
Internal
Expanding Band & Gasket
Vertical
bracing
Install Bracing to Prevent Flotation & Displacement During Grouting
Repeat
Until Expanding
All SectionsBand
Are Installed
Place
Internal
& Gasket
Vertical bracing
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3
Relining with Pipe
PVC – A2™ Liner Pipe
Cost-Effective Rehabilitation with Proven Trenchless Installation Methods
The increasing rate of sanitary and storm sewer deterioration requires an efficient and cost-effective rehabilitation
solution. Contech A2 Liner Pipe uses proven trenchless installation methods to slipline existing sewer lines
without the disruptions associated with open trenching — while increasing productivity and lowering costs.
The A2 Liner Pipe has a unique STAB-JOINT coupler that fits flush with the outer
wall surface for easy installation while ensuring proper load transfer across the joint
during installation.
A2 Liner Pipe Increases Hydraulic Capacity
When reinforced concrete and vitrified clay pipe have offset joints, cracks, spalling or protrusions, there is greater
resistance to flow, reducing hydraulic capacity. Significant hydraulic improvements are achieved when these deteriorated
pipes are sliplined with A2 Liner. A Manning’s “n” value of .009 can actually result in increased flow capacity and
higher flow velocities for improved self-cleaning.
The Manning equation can be used to determine the flow capacities for circular pipes before and after rehabilitation:
% Existing Flow =
n existing
DA2 Liner
n A2 Liner
Dexisting
8/3
The hydraulic comparisons chart, below, compares the flow of existing
concrete pipe after it is relined with A2 Liner Pipe, where:
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n = Manning’s coefficient
A2 Liner “n” = .009
Existing RCP “n” = 0.015
D = inside diameter
Lightweight for Easy Handling and Installation
This analysis is based upon closed-system flow
for sewers or outlet-controlled flow for culverts.
Hydraulic Comparisons
Existing Diameter (in)
15
18
21
24
27
36
42
A2 Liner Diameter (in)
12
15
18
21
24
30
36
Percent Existing
Flow*
92
103
111
117
122
103
111
* Sliplining with A2 Liner actually can increase the hydraulic capacity of
existing RCP drainage systems.
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The lightweight design of the A2 Liner, coupled with a unique
gasketed STAB-JOINT, makes joining easy. Lubricant, two chains
and one or two come-alongs are usually all that is required to join
sections. The light, easy-to-handle sections allow for maneuvering in
tight workspaces. For more information, please contact your Contech
representative.
EXISTING PIPE WALL
A2 LINER
PIPE
A2 SLEEVE
CONNECTOR
NOSE
CONE
PUSH
PUSH RING
A2 Liner Pipe Insertion Detail
Rehabilitating Aging Infrastructure
A2 Liner Pipe Dimensions
Nominal Diameter (in)
Average O.D. (in)
Average I.D. (in)
12
15
18
21
24
27
30
36
12.8
15.7
19.2
22.6
25.6
28.9
32.2
38.7
11.7
14.3
17.6
20.7
23.5
26.4
29.5
35.5
A2 Liner Pipe Jacking Loads and Pushing Distances
Pipe
Safe Compressive Allowable Jacking Allowable Jacking
Diameter (in) Jacking Loads (lb) Distance 1 (ft)
Distance 2 (ft)
12
15
18
21
24
27
30
36
3,200
9,100
14,000
19,000
23,830
27,760
30,900
37,000
3,000
5,000
5,000
5,000
5,000
5,000
5,000
4,000
7,000
12,000
12,000
12,000
12,000
12,000
12,000
10,000
Recommended Grout
Pressure*3 (psi)
5
5
5
5
5
5
5
5
Based on Sliding Coefficient of 0.25 | 2 Based on Sliding Coefficient of 0.10
Contact your local Contech representative for more information about recommended grout pressure
and procedures
* Includes a Factor of Safety (FS) = 3.0 for A2 Liner pipe that is installed perfectly round or a
FS = 2.0 for liner pipe with 5% deflection
1
3
High Density Polyethylene (HDPE) –
InnerFlow® Liner Pipe
Joint Capabilities
lnnerFlow is a solid, smooth-wall high density polyethylene (HDPE) pipe
product which uses a male/female jointing system developed to allow quick
installation in emergency situations. With the interlocking profile and the
patented push-face of the lnnerFlow joint - any installer can expect a joint
that assures watertightness and enough ruggedness to prevent the pipe from
detaching while installing.
The lnnerFlow joint profile has a specific groove where the gasket meeting
ASTM D3212 requirements rests, reducing the possibilities of ripping or
tearing the gasket during the installation process. With the elastomeric
gasket, this pipe system offers a watertight joint that meets and exceeds the
AASHTO M326-08 specification.
Customizable
lnnerFlow Pipe Systems are available in a variety of lengths (up to 49 feet),
and outer diameters range from 8 to 63 inches.
www.ContechES/reline
5
Relining with Pipe
Steel Reinforced Polyethylene Pipe (SRPE) – DuroMaxx®
DuroMaxx is designed with a smooth inner wall for outstanding hydraulic capacity and provides the properties you can
count on for long-term service and performance in the most demanding environments. By providing the strength of steel
and the durability of plastic, DuroMaxx is an optimal reline solution in many situations.
Features
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80 ksi steel reinforced ribbed profile walls.
Pressure-rated polyethylene (PE) resin.
Diameters from 30 to 120 inches.
Standard lengths of 14 or 24 feet with bell and spigot joints. Custom lengths available.
Watertight bell and spigot joints.
Leak-free ElectroFusion (EF) joints available.
DuroMaxx Jacking Loads, Pushing Distances and Grouting Pressure
Diameter
(in)
Safe Jacking Load
(lbs)
Allowable Jacking
Distance 1 (ft)
Allowable Jacking
Distance 2 (ft)
Recommended Grout
Pressure*3 (psi)
30
36
42
48
54
60
66
72
84
96
108
120
2,000
2,400
2,800
3,750
4,240
4,710
5,260
5,810
6,910
8,010
9,110
10,220
426
407
415
487
470
439
370
354
362
368
365
375
1,064
1,017
1,037
1,218
1,175
1,098
924
886
906
921
914
938
10.3
8.5
6.7
6.4
5.6
4.9
5.0
3.9
4.6
3.1
2.2
1.6
Based on Sliding Coefficient of 0.25
Based on Sliding Coefficient of 0.10
3
Contact your local Contech representative for more information about recommended
grout pressure and grout procedures
* Includes a Factor of Safety (FS) = 3.0 for DuroMaxx liner pipe that is installed perfectly round
or a FS = 2.0 for liner pipe with 5% deflection.
1
2
High Performance and Low Head Joint Details – The Design Behind the Performance
POLYETHYLENE ENCAPSULATED
STEEL RETAINING BAND - HP JOINT ONLY*
BELL END MAXIMUM
OUTSIDE DIAMETER
BELL DETAIL
BELL
LENGTH
6
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GASKET
POLYETHYLENE
ENCAPSULATED
STEEL RETAINING
BAND - HP JOINT ONLY*
PE
SPIGOT
SPIGOT DETAIL
Rehabilitating Aging Infrastructure
A proven trenchless installation method providing cost-effective rehabilitation and easy
installation with a joint tightness on which you can depend.
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Manning’s “n” of .012 restores hydraulic capacity to your sewer.
Eliminates costly bypass operations as normal flow is maintained.
Provides excellent durability and resistance to abrasion.
Meets the joint tightness test requirements of ASTM D3212.
HDPE Skid Pipe
ElectroFusion Joint Detail
HDPE Skid Rails
DuroMaxx Pipe Dimensions
Pipe Diameter
(in)
O.D.
(in)
I.D.
(in)
Bell O.D.
(in)
Approx. Weight
(lbs/ft)
30
36
42
48
54
60
66
72
84
96
108
120
30.9
37.1
43.2
49.5
55.5
61.4
67.8
74.1
85.9
97.8
111.3
121.9
29.5
35.4
41.3
47.2
53.2
59.1
65.0
70.9
82.7
94.5
108
118.1
34.0
39.9
45.8
52.3
58.2
64.1
71.7
77.6
*
*
*
*
18.8
23.6
27.0
30.8
36.1
42.9
56.9
65.6
76.3
87.0
99.7
109.0
* A variety of joint options are available for large diameter DuroMaxx. Contact your
local Contech representative for more information about available joint options and
dimensions.
Grout Plug and Coupling Detail
TRIMMED BACK
DUROMAXX RIBS
INSIDE OF
DUROMAXX PIPE
2ӯ GROUT PORT
THREADED GROUT
PLUG
TRIMMED BACK
DUROMAXX RIBS
RETAINING NUT
2ӯ GROUT
PORT
2ӯ GROUT PORT
THREADED GROUT
PLUG
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7
Relining with Pipe
Corrugated Metal Pipe – ULTRA FLO® and SmoothCor™
Restoration of failed or deteriorating pipe can be accomplished by relining with ULTRA FLO or SmoothCor. Their low-wall profile can
yield an inside diameter that approaches the original pipe, while the hydraulic capacity is improved. Contech’s corrugated metal pipe
is light weight and can be provided in custom lengths to meet individual site conditions, making the lining process easier.
Features
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A variety of options with estimated service life of 75+ years in recommended environments.
A variety of premium coatings available.
Lengths of up to 40 feet.
Diameters from 18 to 144 inches.
Custom lengths and diameters available.
Smooth interior – Manning’s “n” of 0.012
ULTRA FLO and SmoothCor Jacking Loads and Pushing Distances
Steel ULTRA FLO
1
2
Aluminum ULTRA FLO
Diameter (in)
Safe Jacking
Load (lbs)
Allowable Jacking
Distance 1 (ft)
Allowable Jacking
Distance 2 (ft)
Safe Jacking
Load (lbs)
Allowable Jacking
Distance 1 (ft)
Allowable Jacking
Distance 2 (ft)
18
21
24
30
36
42
48
54
60
66
72
78
84
90
96
102
3,220
3,660
4,070
4,950
5,090
4,950
4,750
5,090
5,510
10,260
10,180
10,290
14,650
14,840
14,020
14,420
860
820
810
790
550
330
280
270
260
440
400
380
500
470
420
410
2,140
2,030
2,030
1,970
1,370
830
700
670
660
1,110
1,010
950
1,260
1,180
1,050
1,030
1,610
1,830
2,940
4,380
7,800
8,510
9,050
9,540
10,040
10,110
10,520
11,030
11,480
-------
640
610
650
580
670
650
600
560
540
490
460
450
440
-------
1,610
1,520
1,630
1,460
1,690
1,630
1,500
1,400
1,350
1,230
1,160
1,120
1,100
-------
Based on Sliding Coefficient of 0.25
Based on Sliding Coefficient of 0.10
Alignment Rod and Grout Coupling Detail
8
www.ContechES/reline
Rehabilitating Aging Infrastructure
ULTRA FLO Pipe Dimensions*
Pipe Diameter (in)
Max O.D.
(in)
Steel Approx.
Weight (lbs/ft)
Aluminum Approx.
Weight (lbs/ft)
18
21
24
30
36
42
48
54
60
66
72
78
84
90
96
102
20.28
23.28
26.28
32.28
38.28
44.28
50.28
56.32
62.38
68.44
74.50
80.56
86.62
92.68
98.74
104.80
15
18
20
25
37
59
67
75
83
92
100
108
116
125
133
140
5
6
9
15
23
26
30
34
37
41
45
49
52
-------
* Based on AASHTO M36 Specifications. Custom diameters available upon request.
ULTRA FLO Grouting Pressure
Steel – Max PSI
Recommended*1
Aluminum – Max PSI
Recommended* 1
Liner Diameter (in)
Round
5% Deflection
Round
5% Deflection
18
21
24
30
36
42
48
54
60
66
72
78
84
90
96
102
5
52
52
52
52
52
52
52
5
5
4
3
4
3
2
2
5
52
52
52
52
52
52
5
3
3
3
2
2
2
2
1
5
52
52
52
52
52
52
52
5
4
3
2
2
-------
52
52
52
52
52
52
52
5
3
3
2
2
1
-------
2
2
2
Contact your local Contech representative for more information about
recommended grout pressure and grout procedures.
2
Grout pressure limited to 5 psi maximum for practical, safe installation
considerations. Higher grouting pressures may be possible and tolerable, depending
upon the type of joint system used and other site-specific installation considerations.
* Includes a Factor of Safety (FS) = 3.0 for installed ULTRA FLO liner pipe that is
perfectly round or a FS = 2.0 for liner pipe with 5% deflection.
1
www.ContechES/reline
9
Rehabilitation of Bridges
Structures
With a nationwide focus on structurally-deficient and functionally-obsolete
bridges, time and cost-effective bridge replacement solutions are in high demand.
Contech plate and precast structures have proven records of success for:
plate
5-65 ft
precast
12-102 ft
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Emergency bridge replacements
Fast-tracked projects
Relining and rehabilitation
Culvert extensions for road widening
ALBC
Single Radius Arch
Pipe Arch
MULTI-PLATE®
BridgeCor®
BEBO®
CON/SPAN®
0
15
30
60
90
120
CLEAR SPAN (FT)
CON/SPAN® and BEBO®
Buried concrete arches provide another alternative for bridge
rehabilitation. Precast elements are slid easily underneath existing aging
structures to ensure their long-term serviceability.
Because these structures are prefabricated and come with extensive
technical support, they allow highway agencies and municipalities to
dramatically reduce construction time and traffic disruptions during
bridge replacements.
Steel and Aluminum Box Culverts
Box Culverts are a practical and cost-effective solution for small bridge
rehabilitation. These wide-span, low-rise shapes are lightweight, making
them fast and easy to install.
10
www.ContechES/reline
Rehabilitating Aging Infrastructure
MULTI-PLATE® and Aluminium Structural Plate
Steel and aluminum structural plate offerings from Contech have a long history of
strength, durability and economy. These structures meet a wide range of site-specific
challenges with a variety of sizes and shapes available. Additionally, these structures
offer unique design elements that include sloped ends, beveled cuts and elbows. Many
are suited specifically for rehabilitation due to fast installation accompanied by extensive
technical support. These structures provide spans of up to 26 feet.
SUPER-SPAN™, SUPER-PLATE® and BridgeCor®
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Offering larger spans
A different family of shapes
Spans of up to 65 feet
Tunnel Liner Plate
Contech Tunnel Liner Plate provides optimum stability and protection
when constructing new utility tunnels, relining structures under highways
and railroads, and lining vertical shafts. It offers the highest continuous
ring stiffness and high compression joint strength. The 2-Flange Liner
Plate has effective stiffness that is more than double the stiffness of the
same gage of 4-Flange Liner Plate.
2-FLANGE LINER
PLATE LAP JOINT
2-FLANGE LINER PLATE
Deep, full-length corrugations and lapped joints for more effective stiffness and
ring compression.
Typical Grout Fill for Tunnel Liner Plate
LINER
PLATESHELL
SHELL I.D.
ID
LINER
PLATE
Standard Shapes
Arch
Horseshoe
Underpass
Pipe Arch
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11
Providing Economic Alternatives
Installation Site
I-64 Bridge Repair
Huntington, West Virginia
Materials
BEBO precast arch structure
54’ span, 24’-4” rise and 158’ length
Project Details
A buried BEBO Concrete Arch Structure C54 was selected as a value engineering
proposal to replace the original I-64 three-span, steel girder bridge.
Roadway closure from 8:00 p.m. to 6:00 a.m. daily during construction, kept local
road closure time to a minimum. The original maintenance of traffic scheduled for two
construction seasons was reduced to one construction season, providing a huge safety
bonus to the traveling public and to the contractor. With lower material costs and faster
installation times, BEBO proved to be an economical and successful vehicular overpass
solution for the West Virginia Department of Highways.
Installation Site
Route 65 Reline
Carroll County, Missouri
Materials
120" dia. of 10-gage Aluminized Steel Type 2
Corrugated Steel Pipe – 2 runs, 40' long each
Project Details
Aluminized Steel Type 2 Corrugated Steel Pipe was used to reline an existing concrete
box culvert on Route 65 – a major four-lane highway in North-Central Missouri. The
initial consideration was to remove and replace the existing twin 12’x12’ culverts, but
this relining alternative proved to be less expensive, provided the quickest turnaround
time for construction and was the most convenient for traffic flow on the highway. The
Route 65 Reline project was a great success and won an MODOT Practical Design
Award in the Small Bridge Replacement category.
12
www.ContechES/reline
Maintaining Our Infrastructure
Installation Site
CT DOT I-84
Middlebury, Connecticut
Materials
154" to 172" dia. of Galvanized Steel Tunnel Liner Plate and Aluminum Tunnel Liner
Plate
Project Details
A 335' long, twin 14' ellipsed steel structural plate pipe structure installed in 1964
under 35' of fill was lined with a galvanized steel Tunnel Liner Plate, with high strength
mortar lining for hydraulic efficiency, on the upstream end. On the downstream end,
an aluminum Tunnel Liner Plate, without lining, was used to reduce water velocity at
outlet. New structures have diameters from 154" to 172". The new structures were
designed to carry the full load above. Installed in 2000, photos show this structure
in 2012.
Installation Site
MOBILE REGIONAL AIRPORT - RUNWAY 14/32
Mobile, Alabama
Materials
1,500 LF of 120” dia. of DuroMaxx SRPE Pipe
Project Details
In February 2013, the Mobile Airport Authority filed an application with the Federal
Aviation Administration to garner a small stipend intended for continued development
and rehabilitation for the airport. Part of that involved the rehabilitation of a single
1,740’ long, 132” diameter culvert that ran under Runway 14/32.
Given the location, replacement was completely out of the question. The Airport did
not want to have to shut down operations while construction was underway. Ultimately,
they turned to a 120” diameter DuroMaxx steel reinforced polyethylene (SRPE) liner
pipe supplied by Contech Engineered Solutions to slipline into the existing culvert.
www.ContechES/reline
13
The New Infrastructure
The Grouting Process
What is Involved
Grouting of the annular space fixes the position of the new liner
pipe, provides uniform support and inhibits further failure of the
host pipe. High slump, low-strength grout mix containing fly ash
or a cellular grout additive will help ensure all voids are filled.
Pre-blended, commercially available products and blown-sand
methods are other strategies the contractor may consider.
Contech can provide assistance from conceptual ideas to cost
estimates to final shop drawings.
ORIGINAL
STRUCTURE
GROUT IN ANNULAR SPACE
NEW ALSP STRUCTURE
NEW CMP LINER
ORIGINAL STRUCTURE
GROUT IN ANNULAR
SPACE
ORIGINAL STRUCTURE
NEW PRECAST STRUCTURE
GROUT IN ANNULAR SPACE
14
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Rehabilitating Aging Infrastructure
Grouting Techniques
Small Diameters (less than 48”) » Grouting Technique
Pipe diameters less than 48”
are best suited for a single stage
grouting technique.
This is done most efficiently by
constructing a bulkhead at the
ends of the reline and allowing
the new pipe to float to the crown
of the existing pipe while grout is
pumped into the annular space.
Grout should flow in a controlled
manner to ensure balanced filling
on all sides.
Large Diameters (48”and larger) » Grouting Technique
Multiple stage grouting is normally
necessary for pipe that is 48”
diameter and larger. This approach
allows for a large reduction in
effective buoyant force of the fluid
grout. The technique requires a
well-thought bracing and blocking
scheme and a full evaluation of
shape control, grout slump and
mix design and grout pumping
rate. Typically, a self-leveling grout
product should flow in a controlled
manner to ensure balanced filling.
Optional 2” grout ports shown
installed in DuroMaxx® Liner Pipe
Multi-Stage Grouting Procedure
Always use a screen on the pump
hopper to sift out any large aggregate
that can clog the grout line and
potentially damage the structure.
For more information, contact your
Contech representative.
www.ContechES/reline
15
Spiral Wound Reline Technologies – SPR™ PE
Structural Internal Steel Reinforced HDPE Liner Method for Closed
System Storm & Sanitary Sewers and Culverts with Limited Access
SPR™ PE liners can structurally rehabilitate brick, concrete, glass reinforced plastic or
corrugated metal pipelines from 36 to 144 inches. SPR™ PE is a steel reinforced plastic
pipe liner with a smooth internal surface. The liner is spirally wound into a circular
pipe from within the base of the manhole of the pipeline to be rehabilitated. The liner
is introduced into the host pipe at a fixed diameter and annular space is subsequently
grouted using a cellular or low strength cementitious grout. The plastic profile that forms
the liner is reinforced with steel that is fully encapsulated within the HDPE material. The
steel reinforcement is selected based on the individual project design requirements.
•
•
•
•
•
•
•
•
•
Structural liner, strong and lightweight
Manufactured from pipe grade high density polyethylene (HDPE) with embedded
steel reinforcing
Steel thickness can be varied to vary pipeline stiffness
Diameters from 30 to 118 inches using three profiles
Suitable for gravity flow sanitary sewer and storm sewer pipelines
High chemical resistance
Industrial applications
Improved flow with smooth HDPE material (Manning’s n of 0.010)
Installation can occur with up to 25% of the flow present
SPR™ PE
Diameter
30” to 118”
Material
HDPE
Shape
Circular
Fixed diameter
World Wide Project Experience
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Rehab Bro 5M 6/2016 MC
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